112             let mut blk = [0; BLK_SIZE];  in get_recorded_entry()  localVariable
113             if payload_size > blk.len() {  in get_recorded_entry()
118             instance_img.read_block(payload_index, &mut blk).map_err(Error::FailedIo)?;  in get_recorded_entry()
120             let payload = &blk[..payload_size];  in get_recorded_entry()
140     let mut blk = [0; BLK_SIZE];  in record_instance_entry()  localVariable
143     assert!(plaintext.len() + aead_ctx.aead().max_overhead() < blk.len());  in record_instance_entry()
144     let encrypted = aead_ctx.seal(plaintext, /* nonce */ &[], /* ad */ &[], &mut blk)?;  in record_instance_entry()
147     instance_img.write_block(payload_index, &blk).map_err(Error::FailedIo)?;  in record_instance_entry()
150     header.write_to_prefix(blk.as_mut_slice()).unwrap();  in record_instance_entry()
151     blk[header.as_bytes().len()..].fill(0);  in record_instance_entry()
152     instance_img.write_block(header_index, &blk).map_err(Error::FailedIo)?;  in record_instance_entry()
206     let mut blk = [0; BLK_SIZE];  in locate_entry()  localVariable
209     partition.read_block(header_index, &mut blk).map_err(Error::FailedIo)?;  in locate_entry()
211     let header = Header::read_from_prefix(blk.as_slice()).unwrap();  in locate_entry()
217         partition.read_block(header_index, &mut blk).map_err(Error::FailedIo)?;  in locate_entry()
219         let header = EntryHeader::read_from_prefix(blk.as_slice()).unwrap();  in locate_entry()